network attribute|range
---|---
total nodes|27.0 - 46.0
total edges|163.0 - 348.0
network density|0.336 - 0.464
average degree|12.074 - 15.13
degree heterogeneity|0.352 - 0.5
degree assortativity|-0.1 - 0.065
average betweenness centrality (unweighted)|0.017 - 0.024
average betweenness centrality (weighted)|0.017 - 0.024
average clustering coefficient (unweighted)|0.688 - 0.745
average clustering coefficient (weighted)|0.082 - 0.119
Newman modularity|0.249 - 0.26
maximum modularity|0.495 - 0.66
relative modularity|0.394 - 0.503
group cohesion|0.601 - 0.755
network diameter|0.601 - 0.755
**Study description**|**value**
Species|*Zonotrichia atricapilla*
Taxonomic class|Aves
Population type|free-ranging
Geographical location|California, USA
Data collection technique|survey scan
Interaction type|group membership
Definition of interaction|Flocks were defined as a group of individuals found within a single 5 m radius. For each season, Simple Ratio association index was calculated for each pair of individuals, which ranged from 0 for pairs never seen in the same flock and 1 for pairs always seen in the same flock. 
Edge weight type|frequency
Total duration of data collection|4 months
Time resolution of data collection (within a day)|
Time span of data collection (within a day)|focal follow/ad libitum
Note|Networks represent social data collected during two non-breeding seasons: October 2010�February 2011 (Season 2) and October2011�April 2012 (Season 3).
**Citation** | Shizuka, Daizaburo, et al. "Across‐year social stability shapes <br> network structure in wintering migrant sparrows." Ecology <br> letters 17.8 (2014): 998-1007.